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Tag: quantum superposition

Causal structure in the presence of sectorial constraints, with application to the quantum switch

Nick Ormrod1, Augustin Vanrietvelde1,2,3, and Jonathan Barrett11Quantum Group, Department of Computer Science, University of Oxford2Department of Physics, Imperial College London3HKU-Oxford Joint Laboratory for...

Operational interpretation of the vacuum and process matrices for identical particles

Ricardo Faleiro1, Nikola Paunkovic1,2, and Marko Vojinovic31Instituto de Telecomunicações, Avenida Rovisco Pais 1, 1049-001, Lisboa, Portugal2Departamento de Matemática, Instituto Superior Técnico, Universidade de Lisboa,...

Quantum States of Fields for Quantum Split Sources

Lin-Qing Chen1,2, Flaminia Giacomini2,3, and Carlo Rovelli3,4,51Centre for Quantum Information and Communication, Université Libre de Bruxelles, 1050 Brussels, Belgium.2Institute for Theoretical Physics, ETH Zürich,...

Practical computational advantage from the quantum switch on a generalized family of promise problems

Jorge Escandón-Monardes, Aldo Delgado, and Stephen P. WalbornMillennium Institute for Research in Optics and Physics Department, Universidad de Concepción, 160-C Concepción, ChileFind this paper...

Black Holes Will Eventually Destroy All Quantum States, Researchers Argue

IntroductionAt Princeton University in the early 1970s, the celebrated theoretical physicist John Wheeler could be spotted in seminars or impromptu hallway discussions drawing a...

Black holes destroy nearby quantum superpositions, thought experiment reveals

A new thought experiment suggests that the mere presence of a black hole can destroy...

Alice and Bob make cat qubits, 3D printed basketball never deflates

Quantum technology is hot right now and every week it seems that we get a...

Abelian Takes the Lead in Anti-Quantum Encryption Amid the Arrival of “Quantum Supremacy”

The blockchain industry faces a critical challenge in the form of quantum computers’ ability to crack traditional digital signature algorithms, raising concerns about the...

Background Independence and Quantum Causal Structure

Lachlan Parker and Fabio CostaCentre for Engineered Quantum Systems, School of Mathematics and Physics, University of Queensland, QLD 4072 AustraliaFind this paper interesting...

Black holes could reveal their quantum-superposition states, new calculations reveal

Quantum superposition is not just a property of subatomic particles but also of the most...

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